Top Inventors in Joetsu, JP — 2021

Joetsu, JP ranks #781 worldwide for total patents filed in 2021, with 185 patents from 61 inventors. Leading employers of inventors based in Joetsu, JP include Shin-Etsu Chemical Co., Renesas Electronics, Kabushiki Kaisha Toshiba.

Showing 1–50 of 61 inventors

Rank	Inventor	Primary Company	Patents
1	Jun Hatakeyama	Shin-Etsu Chemical Co.	22
2	Koji Hasegawa	Shin-Etsu Chemical Co.	10
3	Takayuki Fujiwara	Shin-Etsu Chemical Co.	8
3	Motoaki Iwabuchi	Shin-Etsu Chemical Co.	8
#5	Masahiro Fukushima	Shin-Etsu Chemical Co.	7
#6	Takeru Watanabe	Shin-Etsu Chemical Co.	6
#6	Tsutomu Ogihara	Shin-Etsu Chemical Co.	6
#6	Naosuke Maruyama	Shin-Etsu Chemical Co.	6
#9	Takeshi Kinsho	Shin-Etsu Chemical Co.	5
#9	Yuki Miyake	Shin-Etsu Chemical Co.	5
#9	Daisuke Domon	Shin-Etsu Chemical Co.	5
#12	Keisuke NIIDA	Shin-Etsu Chemical Co.	4
#12	Daisuke KORI	Shin-Etsu Chemical Co.	4
#12	Naoya Inoue	Renesas Electronics	4
#15	Yuji Harada	Shin-Etsu Chemical Co.	3
#15	Shotaro Aoki	Shin-Etsu Chemical Co.	3
#15	Takuya Yokosawa	Shin-Etsu Chemical Co.	3
#15	Tsutomu Yamakawa	Kabushiki Kaisha Toshiba	3
#15	Seiichiro Tachibana	Shin-Etsu Chemical Co.	3
#15	Takafumi Ueda	Shin-Etsu Chemical Co.	3
#15	Yukio Inazuki	Shin-Etsu Chemical Co.	3
#15	Takashi SAWAMURA	Shin-Etsu Chemical Co.	3
#15	Kouhei Sasamoto	Shin-Etsu Chemical Co.	3
#15	Masaki Takeuchi	Murata Manufacturing Co.	3
#15	Shiori Nonaka	Shin-Etsu Chemical Co.	3
#15	Yasuyuki Hirama	Shin-Etsu Chemical Co.	3
#27	Hideo Kaneko	Shin-Etsu Chemical Co.	2
#27	Hiroko Nagai	Shin-Etsu Chemical Co.	2
#27	Katsuya Takemura	Shin-Etsu Chemical Co.	2
#27	Teppei Adachi	Shin-Etsu Chemical Co.	2
#27	Yuki Suka	Shin-Etsu Chemical Co.	2
#27	Takeshi Sasami	Shin-Etsu Chemical Co.	2
#27	Takahiro KISHITA	Shin-Etsu Chemical Co.	2
#27	Yusuke Kai	Canon	2
#27	Masashi Iio	Shin-Etsu Chemical Co.	2
#27	Masaaki Kotake	Shin-Etsu Chemical Co.	2
#27	Keiichi Masunaga	Shin-Etsu Chemical Co.	2
#27	Hiroyuki Urano	Shin-Etsu Chemical Co.	2
#27	Takashi Miyazaki	Nec	2
#27	Hiroki Nonaka	Toyota	2
#41	Kazumi Noda	Shin-Etsu Chemical Co.	1
#41	Yoichi Tonomura	Shin-Etsu Chemical Co.	1
#41	Hironao Saito	Daiichi Sankyo Company, Limited	1
#41	Naoki Matsuhashi	Shin-Etsu Chemical Co.	1
#41	Yusuke Masue	Nippon Soda Co.	1
#41	Naoki Ishibashi	Shin-Etsu Chemical Co.	1
#41	Tsukasa Watanabe	Aisin Seiki Kabushiki Kaisha	1
#41	Masayoshi Sagehashi	Shin-Etsu Chemical Co.	1
#41	Tomomi Watanabe	Mazda Motor	1
#41	Akihiro Seki	Shin-Etsu Chemical Co.	1

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Joetsu, JP 2021